Completely random notes


I have some voice samples chopped across the sample track and I want to play a completely random sample but at a regular interval eg. step 1 of a sequence.

I am currently using step component “random” set to black key 5 so should chose from 6 steps in the octave but it is not 6 sequential steps (if I understand correctly) but tied to some scale which makes easy sense for synths but less so for drums.

Is there a (simple) way to get it to play a random note from the 24 samples? It seems basic considering all the more advanced options.